[v3,07/15] merge-ort: split out a separate display_update_messages() function

Commit Message

Elijah Newren Feb. 2, 2022, 7:34 a.m. UTC

From: Elijah Newren <[e-mail]>

This patch includes no new code; it simply moves a bunch of lines into a
new function.  As such, there are no functional changes.  This is just a
preparatory step to allow the printed messages to be handled differently
by other callers, such as in `git merge-tree --write-tree`.

(Patch best viewed with
     --color-moved --color-moved-ws=allow-indentation-change
 to see that it is a simple code movement.)

Signed-off-by: Elijah Newren <[e-mail]>
---
 merge-ort.c | 77 ++++++++++++++++++++++++++++-------------------------
 merge-ort.h |  8 ++++++
 2 files changed, 49 insertions(+), 36 deletions(-)

Patch

diff --git a/merge-ort.c b/merge-ort.c
index 46e72b62880..82d2faf5bf9 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -4235,6 +4235,45 @@  static int record_conflicted_index_entries(struct merge_options *opt)
 	return errs;
 }
 
+void merge_display_update_messages(struct merge_options *opt,
+				   struct merge_result *result)
+{
+	struct merge_options_internal *opti = result->priv;
+	struct hashmap_iter iter;
+	struct strmap_entry *e;
+	struct string_list olist = STRING_LIST_INIT_NODUP;
+	int i;
+
+	if (opt->record_conflict_msgs_as_headers)
+		BUG("Either display conflict messages or record them as headers, not both");
+
+	trace2_region_enter("merge", "display messages", opt->repo);
+
+	/* Hack to pre-allocate olist to the desired size */
+	ALLOC_GROW(olist.items, strmap_get_size(&opti->output),
+		   olist.alloc);
+
+	/* Put every entry from output into olist, then sort */
+	strmap_for_each_entry(&opti->output, &iter, e) {
+		string_list_append(&olist, e->key)->util = e->value;
+	}
+	string_list_sort(&olist);
+
+	/* Iterate over the items, printing them */
+	for (i = 0; i < olist.nr; ++i) {
+		struct strbuf *sb = olist.items[i].util;
+
+		printf("%s", sb->buf);
+	}
+	string_list_clear(&olist, 0);
+
+	/* Also include needed rename limit adjustment now */
+	diff_warn_rename_limit("merge.renamelimit",
+			       opti->renames.needed_limit, 0, stderr);
+
+	trace2_region_leave("merge", "display messages", opt->repo);
+}
+
 void merge_switch_to_result(struct merge_options *opt,
 			    struct tree *head,
 			    struct merge_result *result,
@@ -4273,42 +4312,8 @@  void merge_switch_to_result(struct merge_options *opt,
 		trace2_region_leave("merge", "write_auto_merge", opt->repo);
 	}
 
-	if (display_update_msgs) {
-		struct merge_options_internal *opti = result->priv;
-		struct hashmap_iter iter;
-		struct strmap_entry *e;
-		struct string_list olist = STRING_LIST_INIT_NODUP;
-		int i;
-
-		if (opt->record_conflict_msgs_as_headers)
-			BUG("Either display conflict messages or record them as headers, not both");
-
-		trace2_region_enter("merge", "display messages", opt->repo);
-
-		/* Hack to pre-allocate olist to the desired size */
-		ALLOC_GROW(olist.items, strmap_get_size(&opti->output),
-			   olist.alloc);
-
-		/* Put every entry from output into olist, then sort */
-		strmap_for_each_entry(&opti->output, &iter, e) {
-			string_list_append(&olist, e->key)->util = e->value;
-		}
-		string_list_sort(&olist);
-
-		/* Iterate over the items, printing them */
-		for (i = 0; i < olist.nr; ++i) {
-			struct strbuf *sb = olist.items[i].util;
-
-			printf("%s", sb->buf);
-		}
-		string_list_clear(&olist, 0);
-
-		/* Also include needed rename limit adjustment now */
-		diff_warn_rename_limit("merge.renamelimit",
-				       opti->renames.needed_limit, 0, stderr);
-
-		trace2_region_leave("merge", "display messages", opt->repo);
-	}
+	if (display_update_msgs)
+		merge_display_update_messages(opt, result);
 
 	merge_finalize(opt, result);
 }
diff --git a/merge-ort.h b/merge-ort.h
index fe599b87868..e5aec45b18f 100644
--- a/merge-ort.h
+++ b/merge-ort.h
@@ -80,6 +80,14 @@  void merge_switch_to_result(struct merge_options *opt,
 			    int update_worktree_and_index,
 			    int display_update_msgs);
 
+/*
+ * Display messages about conflicts and which files were 3-way merged.
+ * Automatically called by merge_switch_to_result() with stream == stdout,
+ * so only call this when bypassing merge_switch_to_result().
+ */
+void merge_display_update_messages(struct merge_options *opt,
+				   struct merge_result *result);
+
 /* Do needed cleanup when not calling merge_switch_to_result() */
 void merge_finalize(struct merge_options *opt,
 		    struct merge_result *result);